# The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will

1.  increase

2.  decrease

3.  be independent

4.  may increase or decrease depending on other factors

4

decrease

Explanation :
No Explanation available for this question

# Pick up the wrong statement

1.  2-stroke engine can run in any direction

2.  In 4-stroke engine, a power stroke is obtained in 4-strokes

3.  thermal efficiency of 4-strokc engine is more due to positive scavenging

4.  petrol engines occupy more space than diesel engines for same power output.

4

petrol engines occupy more space than diesel engines for same power output.

Explanation :
No Explanation available for this question

# Combustion in compression ignition engines is

1.  homogeneous

2.  heterogeneous

3.  both (a) and (b)

4.  laminar

4

heterogeneous

Explanation :
No Explanation available for this question

# For pipes, turbulent flow occurs when Reynolds number is

1.  less than 2000

2.  between 2000 and 4000

3.  more than 4000

4.  less than 4000

4

more than 4000

Explanation :
No Explanation available for this question

# Bernoulli equation deals with the law of conservation of

1.  mass

2.  momentum

3.  energy

4.  work

4

energy

Explanation :
No Explanation available for this question

# The fuel in diesel engine is normally injected at pressure of

1.  5-10 kg/cm2

2.  20-25 kg/cm2

3.  60-80 kg/cm2

4.  90-130 kg/cm2

4

90-130 kg/cm2

Explanation :
No Explanation available for this question

# The specific fuel consumption per BHP hour for diesel engine is approximately

1.  0.15 kg

2.  0.2 kg

3.  0.25 kg

4.  0.3 kg

4

0.2 kg

Explanation :
No Explanation available for this question

# A diesel engine has

1.  1 valve

2.  2 valves

3.  3 valves

4.  4 valves

4

3 valves

Explanation :
No Explanation available for this question

# Crankcase explosion in I.C. engines usually occurs as

1.  first a mild explosion followed by a bi explosion

2.  first a big explosion followed by a mil explosion

3.  both mild and big explosions occur simultaneously

4.  never occurs

4

first a mild explosion followed by a bi explosion

Explanation :
No Explanation available for this question

# Compression loss in I.C engines occurs due to

1.  leaking piston rings

3.  clogged air-inlet slots

4.  all of the above.

4